Question

Two resistance 2 and 5 ohm are connected in series, the equivalent resistance is--
i. 7ohm
ii. 5 ohm
iii. 2 ohm
iv. 0.8 ohm


Please give this answer fast as soon as possible..​

Answer 1

Answer:

(i) 7 ohms

Explanation:

Given:

• Resistance of the first resistor = 2 ohms
• Resistance of the second resistor = 5 ohms

To find:

• The resistors are connected in series combination which have a resistance of 2 ohms and 5 ohms

Formula:

When two resistors are connected in series, equivalent resistance = R1+R2

Equivalent resistance = 2+5 = 7 ohms

Hence 7 ohms is the equivalent resistance across the circuit

Hence, option (i) is the correct answer

More:

• When resistors are connected in parallel, 1/Req = 1/R1+1/R2

Answer 2

Explanation:

______________________

Question :-

• Two resistance 2 and 5 ohm are connected in series, the equivalent resistance is--i. 7ohmii. 5 ohmiii. 2 ohmiv. 0.8 ohm

______________________

given :-

• Resistor 1 = R¹ = 2 ohm
• Resistor 2= R² = 5ohm

______________________

to find :-

• the equivalent resistance is--

______________________

solution :-

Minimum Current flowing through the circuitwhen .

• the two resistors are connected in series'

Rs = R¹ + R²

Rs = 2 + 5

Rs = 7 ohm

Hence the option i. 7ohm right answer